Electrical Preventative Maintenance Checklist

Electrical Preventative Maintenance Checklist

Electrical Preventative Maintenance Checklist
The following Maintenance Checks are crucial to most businesses with electrical machinery, large amounts of lighting and other appliances, overhead doors and other expensive assets.

Only properly trained staff or certified electricians should do the following checks. Dangerous current levels, fire hazards and damage to expensive assets are very real threats and need to be well managed.

About 2/3 of Electrical Preventative Maintenance is done while systems are energized. This creates a high potential for danger.
The following are not complete specifications: check each manufacturer’s or supplier’s guidelines.

ASSET
Cables from power utility into facilityPOTENTIAL ISSUES
Faulty connectionsWHEN TO CHECK
3 year intervals

ASSET
Power from UtilityPOTENTIAL ISSUES
Surges, sagsWHEN TO CHECK
Surge protectors should warn equipment operators if conditions are unusual or dangerous

ASSET
Electrical EquipmentPOTENTIAL ISSUES
Turning equipment on or off, placing large loads or quick reductions in load – these can create surges through the electrical systemWHEN TO CHECK
1 monthNOTES
Newer solid-state electronic controllers can be damaged by surges.

ASSET
Electrical EquipmentPOTENTIAL ISSUES
Harmonics – most equipment operates at 60 cycles per second. If 2 or more pieces of equipment get into a harmonic sync, then their matching power peaks and valleys can create real problemsWHEN TO CHECK
1 monthNOTES
Professional detection equipment can spot problems and isolate which systems need filtering or adjusting

ASSET
Electrical ConnectionsPOTENTIAL ISSUES
Inspect carefully for indications of arcing, corrosion, hot spotsWHEN TO CHECK
If no changes to the systems an annual inspection is reasonable. If there has been additions and changes, then the connection need to be checked.

ASSET
Power Surge ProtectorsWHEN TO CHECK
If the system has been changed significantly, then surge protectors need to be checked.